Griffin technology has announced four new cases for Samsung's Galaxy S4. The Survivor is a tough military grade case built with a shatter-resistant polycarbonate frame, and shock-absorbing silicone. It also features a built-in screen protector, and is sand and waterproof. The Survivor Skin for the Samsung Galaxy S4 is a thick silicone skin that protects the back, sides and edges of your phone. Last but not least, the Reveal is a thin shield with a slim rubber lining that cushions your phone from bumps and falls. The Survivor with heavy-duty belt clip is $50, the silicone Survivor skin is $20, and the Reveal is $25. You can sign up for stock updates for all three cases at GriffinTechnology.com.